Raymond H. Cattell

Raymond H. Cattell (1905-1998) was a prominent psychologist known for his work in personality and intelligence. He introduced the idea that intelligence is not a single trait but consists of different types, specifically crystallized and fluid intelligence. Cattell developed the 16 Personality Factor Questionnaire (16PF), which assesses various personality traits to provide insights into human behavior. His research emphasized the importance of empirical methods in psychology, using factor analysis to uncover underlying relationships in data. Cattell's contributions have significantly shaped modern psychology, particularly in understanding and measuring personality and intelligence.